MINISMDC010-02 Equivalent & Substitute Parts

Part Overview

The MINISMDC010-02 is a polymeric PTC resettable fuse manufactured by Littelfuse Inc. in the PolySwitch® miniSMD series. This component is rated for 60V maximum voltage with a 100 mA hold current and is packaged in a 1812 (4532 Metric) surface mount configuration. The part is currently listed as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Max	60V
Current - Hold (Ih) (Max)	100 mA
Current - Trip (It)	300 mA
Resistance - Initial (Ri) (Min)	700 mOhms
Package / Case	1812 (4532 Metric), Concave
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Size / Dimension	0.179" L x 0.128" W (4.55mm x 3.24mm)

Substitute Part Grouping Explanation

Substitution eligibility for the MINISMDC010-02 is determined by strict equivalence across the following parameters:

Voltage rating: 60V maximum
Hold current: 100 mA maximum
Trip current: 300 mA
Package type: 1812 (4532 Metric), Concave surface mount
Physical dimensions: 0.179" L x 0.128" W (4.55mm x 3.24mm)
Operating temperature range: -40°C ~ 85°C
Resistance characteristics: Initial resistance minimum 700 mOhms

All identified substitute parts meet these core electrical and mechanical parameters. Variations in secondary characteristics such as time-to-trip, post-trip resistance, and product status are noted but do not disqualify functional equivalence within the specified parameter set.

Parameter Comparison

Parameter	MINISMDC010-02	MINIASMDC010F-2	MINISMDC010F-2	MF-MSMF010-2	PFMF.010.2
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Bourns Inc.	SCHURTER Inc.
Series	PolySwitch® miniSMD	PolySwitch® miniASMD	PolySwitch® miniSMD	Multifuse® MF-MSMF	PFMF
Product Status	Obsolete	Active	Active	Active	Active
Voltage - Max	60V	60V	60V	60V	60V
Current - Hold (Ih) (Max)	100 mA	100 mA	100 mA	100 mA	100 mA
Current - Trip (It)	300 mA	300 mA	300 mA	300 mA	300 mA
Resistance - Initial (Ri) (Min)	700 mOhms	700 mOhms	700 mOhms	700 mOhms	700 mOhms
Package / Case	1812 (4532 Metric), Concave	1812 (4532 Metric), Concave	1812 (4532 Metric), Concave	1812 (4532 Metric), Concave	1812 (4532 Metric), Concave
Size / Dimension	0.179" L x 0.128" W (4.55mm x 3.24mm)	0.179" L x 0.128" W (4.55mm x 3.24mm)	0.179" L x 0.128" W (4.55mm x 3.24mm)	0.179" L x 0.128" W (4.55mm x 3.24mm)	0.179" L x 0.128" W (4.55mm x 3.24mm)
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	-	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Inventory Status	861 Pcs	12063 Pcs	3530 Pcs	6400 Pcs	197077 Pcs

Engineering Selection Recommendations

All four substitute parts are functionally equivalent to the MINISMDC010-02 across the defined electrical and mechanical parameters. Selection among these alternatives should be based on the following factors:

MINIASMDC010F-2 (Littelfuse Inc., PolySwitch® miniASMD): Active product status with AEC-Q200 rating and ROHS3 compliance. Maintains Littelfuse manufacturer continuity with 12,063 units in stock.

MINISMDC010F-2 (Littelfuse Inc., PolySwitch® miniSMD): Active product status with ROHS3 compliance. Direct series continuation within the miniSMD line with 3,530 units available.

MF-MSMF010-2 (Bourns Inc., Multifuse® MF-MSMF): Active product status with AEC-Q200 rating and ROHS3 compliance. Cross-manufacturer alternative with 6,400 units in stock. Thickness specification is 0.043" (1.10mm) versus 0.035" (0.89mm) for the original part.

PFMF.010.2 (SCHURTER Inc., PFMF): Active product status with ROHS3 compliance. Highest inventory availability at 197,077 units. Thickness specification is 0.043" (1.10mm). MSL rating is Not Applicable.

The original MINISMDC010-02 carries RoHS non-compliant status. All substitute parts are ROHS3 compliant, supporting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can MINIASMDC010F-2 be used as a direct replacement for MINISMDC010-02?

A: Yes. Both parts share identical electrical parameters (60V, 100 mA hold current, 300 mA trip current) and package specifications (1812 Concave surface mount). MINIASMDC010F-2 is an active product with AEC-Q200 rating and ROHS3 compliance.

Q: What is the difference between MINISMDC010F-2 and MINIASMDC010F-2?

A: Both are Littelfuse products with identical electrical and mechanical specifications. MINIASMDC010F-2 belongs to the miniASMD series and carries AEC-Q200 rating, while MINISMDC010F-2 is part of the miniSMD series. Both are active products with ROHS3 compliance.

Q: Are the Bourns MF-MSMF010-2 and SCHURTER PFMF.010.2 physically compatible?

A: Both parts fit the 1812 (4532 Metric) package footprint with identical length and width (0.179" x 0.128"). However, both have a maximum thickness of 0.043" (1.10mm) compared to the original part's 0.035" (0.89mm). Verify PCB assembly clearance before substitution.

Q: Does the original MINISMDC010-02 have any compliance advantages over the substitutes?

A: No. The original part is RoHS non-compliant. All substitute parts are ROHS3 compliant, meeting current regulatory standards. The original part's obsolete status makes substitution necessary for new procurement.

Q: Which substitute has the best inventory availability?

A: PFMF.010.2 from SCHURTER Inc. has 197,077 units in stock, significantly higher than other alternatives.

Q: Are there differences in time-to-trip between substitutes?

A: Yes. The original MINISMDC010-02 specifies 5 seconds time-to-trip. MF-MSMF010-2 and PFMF.010.2 specify 1.5 seconds. MINIASMDC010F-2 and MINISMDC010F-2 maintain the 5-second specification. Verify application requirements before selecting a substitute with different trip timing.

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